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https://www.readbyqxmd.com/read/27915469/myd88-cd79b-and-card11-gene-mutations-in-cd5-positive-diffuse-large-b-cell-lymphoma
#1
Toshifumi Takeuchi, Motoko Yamaguchi, Kyoko Kobayashi, Kana Miyazaki, Isao Tawara, Hiroshi Imai, Ryoichi Ono, Tetsuya Nosaka, Kyosuke Tanaka, Naoyuki Katayama
BACKGROUND: CD5-positive (CD5(+) ) diffuse large B-cell lymphoma (DLBCL) is characterized by frequent central nervous system recurrence and a predominant activated B-cell-like nature. Primary DLBCL in sanctuary sites (DLBCL-SS) also demonstrates these features, and >70% of patients harbor myeloid differentiation primary response 88 (MYD88) (L265P) and CD79B mutations. The objective of the current study was to elucidate a possible relationship between CD5(+) DLBCL and DLBCL-SS. METHODS: MYD88, CD79B, CD79A, and caspase recruitment domain family member 11 (CARD11) mutations were examined in samples from 40 patients with CD5(+) DLBCL...
December 4, 2016: Cancer
https://www.readbyqxmd.com/read/27915468/clinical-characteristics-of-testicular-germ-cell-tumors-in-patients-aged-50-years-and-older-a-large-scale-study-from-the-cancer-registration-committee-of-the-japanese-urological-association
#2
Taketo Kawai, Yoshinori Tanaka
OBJECTIVES: To determine the characteristics of testicular germ cell tumors in older patients. METHODS: A testicular cancer survey was carried out by the Japanese Urological Association in 2011 to register the testicular cancers diagnosed in 2005 and 2008. The survey included age, presenting symptoms, physical examination findings, tumor markers, histopathology, clinical stage, treatment and clinical outcomes. These factors were compared between patients aged ≥50 years and those aged <50 years at diagnosis...
December 4, 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/27915088/exploring-awareness-and-help-seeking-intentions-for-testicular-symptoms-among-heterosexual-gay-and-bisexual-men-in-ireland-a-qualitative-descriptive-study
#3
Mohamad M Saab, Margaret Landers, Josephine Hegarty
BACKGROUND: The incidence of malignant and benign testicular disorders among young men is on the rise. Evidence from three reviews suggest that men's knowledge of these disorders is lacking and their help-seeking intention for testicular symptoms is suboptimal. Qualitative studies have addressed men's awareness of testicular cancer, with none exploring their awareness of non-malignant diseases such as epididymitis, testicular torsion, and varicocele and none including sexual minorities...
November 28, 2016: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/27906086/massive-adrenal-vein-aneurysm-mimicking-an-adrenal-tumor-in-a-patient-with-hemophilia-a-a-case-report-and-review-of-the-literature
#4
Richard Sleightholm, Steven Wahlmeier, Jeffrey S Carson, Andjela Drincic, Audrey Lazenby, Jason M Foster
BACKGROUND: Visceral venous aneurysms are exceedingly rare, and until now, there have been no reports of this phenomenon in the adrenal vasculature. This report details the first adrenal venous aneurysm reported in the literature. The aneurysm presented as an 18-cm mass that was initially suspected to be a hematoma or tumor on the basis of the complex medical history of the patient, which included hemophilia A and testicular cancer. After surgical excision, pathologic examination confirmed this mass to be a 15...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27905446/genomic-evolution-and-chemoresistance-in-germ-cell-tumours
#5
Amaro Taylor-Weiner, Travis Zack, Elizabeth O'Donnell, Jennifer L Guerriero, Brandon Bernard, Anita Reddy, G Celine Han, Saud AlDubayan, Ali Amin-Mansour, Steven E Schumacher, Kevin Litchfield, Clare Turnbull, Stacey Gabriel, Rameen Beroukhim, Gad Getz, Scott L Carter, Michelle S Hirsch, Anthony Letai, Christopher Sweeney, Eliezer M Van Allen
Germ-cell tumours (GCTs) are derived from germ cells and occur most frequently in the testes. GCTs are histologically heterogeneous and distinctly curable with chemotherapy. Gains of chromosome arm 12p and aneuploidy are nearly universal in GCTs, but specific somatic genomic features driving tumour initiation, chemosensitivity and progression are incompletely characterized. Here, using clinical whole-exome and transcriptome sequencing of precursor, primary (testicular and mediastinal) and chemoresistant metastatic human GCTs, we show that the primary somatic feature of GCTs is highly recurrent chromosome arm level amplifications and reciprocal deletions (reciprocal loss of heterozygosity), variations that are significantly enriched in GCTs compared to 19 other cancer types...
November 30, 2016: Nature
https://www.readbyqxmd.com/read/27900048/regulatory-network-of-micrornas-and-genes-in-testicular-cancer
#6
Yansong Zhao, Zhiwen Xu, Ning Wang, Shang Wang
Testicular cancer (TC) is the most common cancer in men between 20-40 years of age. A large number of studies have focused on identifying the cause of this disease; however, the underlying regulatory mechanisms have not been thoroughly investigated and the specific cause remains unclear. The present study systematically analyzed the regulatory associations between genes, transcription factors (TFs) and microRNAs (miRNAs), aiming to obtain key information regarding the regulatory processes of TC. Three different networks were derived from the analysis: Global, related and differentially-expressed...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899190/genetic-changes-associated-with-testicular-cancer-susceptibility
#7
REVIEW
Louise C Pyle, Katherine L Nathanson
Testicular germ cell tumor (TGCT) is a highly heritable cancer primarily affecting young white men. Genome-wide association studies (GWAS) have been particularly effective in identifying multiple common variants with strong contribution to TGCT risk. These loci identified through association studies have implicated multiple genes as associated with TGCT predisposition, many of which are unique among cancer types, and regulate processes such as pluripotency, sex specification, and microtubule assembly. Together these biologically plausible genes converge on pathways involved in male germ cell development and maturation, and suggest that perturbation of them confers susceptibility to TGCT, as a developmental defect of germ cell differentiation...
October 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/27893934/surveillance-versus-adjuvant-radiotherapy-for-patients-with-high-risk-stage-i-seminoma
#8
Mette S Mortensen, Mikkel Bandak, Maria Gg Kier, Jakob Lauritsen, Mads Agerbaek, Niels V Holm, Hans von der Maase, Gedske Daugaard
BACKGROUND: The optimal treatment strategy for patients with clinical stage I (CS-1) seminoma is controversial. The objective of the current study was to evaluate the outcomes for patients considered to be at high risk of disease recurrence with a tumor size ≥6 cm. Patients were treated with either adjuvant radiotherapy (RT) or followed with surveillance. METHODS: From the Danish Testicular Cancer database, the authors identified 473 patients with CS-1 seminoma with a tumor size ≥6 cm...
November 28, 2016: Cancer
https://www.readbyqxmd.com/read/27886677/differences-in-global-dna-methylation-of-testicular-seminoma-are-not-associated-with-changes-in-histone-modifications-clinical-prognosis-braf-mutations-or-gene-expression
#9
Louise Holm Pedersen, John E Nielsen, Gedske Daugaard, Thomas V O Hansen, Ewa Rajpert-De Meyts, Kristian Almstrup
Testicular germ cell tumours of young adults are comprised of a heterogeneous group of non-seminomas and a homogeneous group of seminomas. While the majority of seminomas retain a hypo-methylated genome, a small fraction displays a highly methylated genome, resembling hyper-methylated non-seminomas. It is well established from e.g. melanoma, colorectal and thyroid cancer that a methylated phenotype can be correlated to prognosis and can be related to BRAF mutations. In the present study we investigated the global methylation level in 67 seminomas and classified them as hypo-methylated, intermediate, patchy and hyper-methylated, respectively...
November 2016: Cancer Genetics
https://www.readbyqxmd.com/read/27885307/epidemiology-of-testicular-cancer-in-oklahoma-and-the-united-states
#10
Shannon Smith, Amanda Janitz, Janis Campbell
Testicular cancer is a rare cause of morbidity and mortality in the US. Marked disparities in the development of this cancer exist, with testicular cancer being more common in Caucasian men and men of higher socioeconomic status. The incidence of testicular cancer is increasing worldwide, and the reasons for this have not been well documented. It has been proposed that this increase may be due to highly prevalent environmental factors, or from exposure to polychlorinated biphenyls, polyvinyl chloride, cigarette smoking, and tetrahydrocannabinol (THC)...
July 2016: Journal of the Oklahoma State Medical Association
https://www.readbyqxmd.com/read/27879966/andrological-complications-following-retroperitoneal-lymphnode-dissection-for-testicular-cancer-a-narrative-review
#11
Alessandro Crestani, Francesco Esperto, Marta Rossanese, Gianluca Giannarini, Nicola Nicolai, Vincenzo Ficarra
Retroperitoneal lymphnode dissection (RPLND) is a fundamental surgical step in the treatment of testicular cancer. Nowadays primary RPLND has partially lost its role in favour of active surveillance (for low risk stage I disease) and short cycle chemotherapy in non-seminomatous germ cell tumour (NSGCT). Conversely, postchemotherapy-RPLND (PC-RPLND) remains the standard treatment for residual masses after chemotherapy. In consideration of curability rate of testicular cancer and the life expectancy of testicular cancer survivors the identification and the prevention of andrological complications became fundamental...
November 23, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27873769/androgen-receptor-gene-cag-and-ggn-repeat-lengths-as-predictors-of-recovery-of-spermatogenesis-following-testicular-germ-cell-cancer-treatment
#12
Karolina Bogefors, Yvonne Lundberg Giwercman, Jakob Eberhard, Olof Stahl, Eva Cavallin-Stahl, Gabriella Cohn-Cedermark, Stefan Arver, Aleksander Giwercman
Spermatogenesis is an androgen-regulated process that depends on the action of androgen receptor (AR). Sperm production may be affected in men treated for testicular cancer (TC), and it is important to identify the factors influencing the timing of spermatogenesis recovery following cancer treatment. It is known that the CAG and GGN repeat numbers affect the activity of the AR; therefore, the aim of this study is to investigate if the CAG and GGN polymorphisms in the AR gene predict recovery of sperm production after TC treatment...
November 18, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27869164/the-hot-spot-p53r172h-mutant-promotes-formation-of-giant-spermatogonia-triggered-by-dna-damage
#13
Y Xue, A Raharja, W Sim, E S M Wong, S A B Rahmat, D P Lane
Overexpression of mutant p53 is a common finding in most cancers but testicular tumours accumulate wild-type p53 (wtp53). In contrast to the accepted concept that p53 homozygous mutant mice do not accumulate mutant p53 in normal cells, our study on a mutant p53 mouse model of Li-Fraumeni syndrome harbouring the hot-spot p53R172H mutation described an elevated level of mutant p53 in non-cancerous mouse tissues. Here we use detailed immunohistochemical analysis to document the expression of p53R172H in mouse testis...
November 21, 2016: Oncogene
https://www.readbyqxmd.com/read/27867337/oligometastatic-growing-teratoma-syndrome-a-case-for-an-aggressive-surgical-approach
#14
William S Gange, Robert H Blackwell, John Biemer, Güliz A Barkan, Maria M Picken, Marcus L Quek
Growing teratoma syndrome is an infrequent presentation of testicular cancer. We present a case of growing teratoma syndrome in a patient who initially presented with clinical stage I nonseminomatous testicular germ cell tumor, who subsequently developed large volume oligometastases to the retroperitoneum, thorax, and thigh. Despite two regimens of chemotherapy, his disease progressed. Complete surgical extirpation of all gross tumors confirmed mature teratoma. An aggressive surgical approach, including postchemotherapy resection of all known metastatic sites, can provide long-term disease-free survival...
October 2016: Current Urology
https://www.readbyqxmd.com/read/27865450/reproductive-function-in-the-sons-of-women-who-experienced-stress-due-to-bereavement-before-and-during-pregnancy-a-nationwide-population-based-cohort-study
#15
Oleguer Plana-Ripoll, Jiong Li, Ulrik Schiøler Kesmodel, Erik Parner, Jørn Olsen, Olga Basso
OBJECTIVE: To estimate the association between prenatal exposure to maternal stress and reproductive disorders in Danish men, where prenatal stress exposure was defined as the mother's loss of a close relative during pregnancy or in the 12 months before conception. DESIGN: Population-based cohort study. SETTING: Not applicable. PATIENT(S): All males born in Denmark between 1973 and 2008 (n = 1,217,576) and observed for up to 39 years...
November 16, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27864361/causes-of-male-infertility-a-9-year-prospective-monocentre-study-on-1737-patients-with-reduced-total-sperm-counts
#16
M Punab, O Poolamets, P Paju, V Vihljajev, K Pomm, R Ladva, P Korrovits, M Laan
STUDY QUESTION: What are the primary causes of severe male factor infertility? SUMMARY ANSWER: Although 40% of all patients showed primary causes of infertility, which could be subdivided into three groups based on the severity of their effect, ~75% of oligozoospermia cases remained idiopathic. WHAT IS KNOWN ALREADY: There are few large-scale epidemiological studies analyzing the causes of male factor infertility. STUDY DESIGN, SIZE, DURATION: A prospective clinical-epidemiological study was conducted at the Andrology Centre, Tartu University Hospital between 2005 and 2013, recruiting male partners of couples failing to conceive a child for over ≥12 months...
November 17, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27863478/prognostic-value-of-cd66b-positive-tumor-infiltrating-neutrophils-in-testicular-germ-cell-tumor
#17
Yuta Yamada, Tohru Nakagawa, Toru Sugihara, Takamasa Horiuchi, Uran Yoshizaki, Tetsuya Fujimura, Hiroshi Fukuhara, Tomohiko Urano, Kenichi Takayama, Satoshi Inoue, Haruki Kume, Yukio Homma
BACKGROUND: Prognostic value of immune cells is not clear in testicular germ cell tumors (TGCTs). We aimed to investigate the prognostic value of tumor-infiltrating neutrophils in TGCTs. METHODS: A total of 102 patients who underwent orchiectomy for TGCT were investigated for CD66b positive tumor-infiltrating neutrophils (CD66b + TINs). Immmunostaining for CD66b was performed in 102 sections as described. Clinicopathological parameters as well as cancer specific survival and overall survival were assessed for correlation with CD66b + TIN density...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27859263/post-chemotherapy-retroperitoneal-teratoma-in-nonseminomatous-germ-cell-tumors-do-predictive-factors-exist-results-from-a-national-multicenter-study
#18
Marie Dusaud, Bernard Malavaud, Younes Bayoud, Philippe Sebe, Jean Luc Hoepffner, Laurent Salomon, Alain Houlgatte, Géraldine Pignot, Jérome Rigaud, Aude Fléchon, Christian Pfister, Morgan Rouprêt, Michel Soulié, Arnaud Méjean, Xavier Durand
BACKGROUND AND OBJECTIVES: To identify predictive preoperative factors of the presence of teratoma in retroperitoneal lymph node dissection specimens. METHODS: We performed a 20 years multicenter retrospective analysis of all patients who underwent retroperitoneal lymph node dissection for residual masses after chemotherapy (PC-RPLND). Patients had undergone PC-RPLND after chemotherapy for advanced testicular cancer. The histologic components of the primary tumor were compared with those of the residual masses using logistic regression...
November 18, 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27853490/non-seminomatous-germ-cell-tumor-metastasis-to-the-jaw-an-imaging-case-report
#19
Rita Olivia Siverino, Alessandra Uccello, Maria Luisa Giunta, Mario Uccello, Placido Amadio, Giuseppe Petrillo
Testicular cancer typically spreads to the lymph nodes, but hematogenous dissemination to distant organs can also occur. Bone metastasis is uncommon and is thought to be a poor prognostic indicator. Jaw metastasis is exceedingly rare but is of great clinical significance, since it may be the first sign of an occult testicular cancer or the first evidence of relapse of a known tumor. Herein, we report the first case describing the imaging and clinical findings of a non-seminomatous germ cell tumor with jaw metastasis at diagnosis...
July 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27849668/risk-of-acute-testicular-failure-after-preoperative-radiotherapy-for-rectal-cancer-a-prospective-cohort-study
#20
Christian Buchli, Anna Martling, Massoud Al Abani, Jan-Erik Frödin, Matteo Bottai, Ingmar Lax, Stefan Arver, Torbjörn Holm
OBJECTIVE: The aim of this study was to assess the acute effect of preoperative RT for rectal cancer on endocrine testicular function. BACKGROUND: Preoperative radiotherapy (RT) enhances local control and cancer-specific survival in patients treated for rectal cancer. In case series, a negative acute effect on Leydig cell function has been reported. METHODS: This prospective cohort study included 168 males with rectal or prostate cancer stage I-III...
November 15, 2016: Annals of Surgery
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